/*
 * Copyright (c) 2019-2022 Meltytech, LLC
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import QtQuick 2.12
import QtQuick.Controls 2.12
import QtQuick.Layouts 1.12
import Shotcut.Controls 1.0 as Shotcut

Shotcut.KeyframableFilter {
    keyframableParameters: ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14']
    property var defaultValues: [0, 50, 0.5, 0, 100, 1, 0, 700, 1, 0, 5000, 1, 0, 15000, 0.5]
    startValues: [0, 100, 0.5, 0, 100, 1, 0, 700, 1, 0, 5000, 1, 0, 15000, 0.5]
    middleValues: [0, 100, 0.5, 0, 100, 1, 0, 700, 1, 0, 5000, 1, 0, 15000, 0.5]
    endValues: [0, 100, 0.5, 0, 100, 1, 0, 700, 1, 0, 5000, 1, 0, 15000, 0.5]
    property bool blockControls: false

    width: 200
    height: 550

    Component.onCompleted: {
        if (filter.isNew) {
            filter.set('0', defaultValues[0])
            filter.set('1', defaultValues[1])
            filter.set('2', defaultValues[2])
            filter.set('3', defaultValues[3])
            filter.set('4', defaultValues[4])
            filter.set('5', defaultValues[5])
            filter.set('6', defaultValues[6])
            filter.set('7', defaultValues[7])
            filter.set('8', defaultValues[8])
            filter.set('9', defaultValues[9])
            filter.set('10', defaultValues[10])
            filter.set('11', defaultValues[11])
            filter.set('12', defaultValues[12])
            filter.set('13', defaultValues[13])
            filter.set('14', defaultValues[14])
            filter.savePreset(preset.parameters)
        }
        setControls()
    }

    function setControls() {
        if (blockControls) return
        var position = getPosition()
        blockUpdate = true
        slider0.value = filter.getDouble('0', position)
        slider1.value = filter.getDouble('1', position)
        slider2.value = filter.getDouble('2', position)
        slider3.value = filter.getDouble('3', position)
        slider4.value = filter.getDouble('4', position)
        slider5.value = filter.getDouble('5', position)
        slider6.value = filter.getDouble('6', position)
        slider7.value = filter.getDouble('7', position)
        slider8.value = filter.getDouble('8', position)
        slider9.value = filter.getDouble('9', position)
        slider10.value = filter.getDouble('10', position)
        slider11.value = filter.getDouble('11', position)
        slider12.value = filter.getDouble('12', position)
        slider13.value = filter.getDouble('13', position)
        slider14.value = filter.getDouble('14', position)
        keyframesButton.checked = filter.animateIn <= 0 && filter.animateOut <= 0 && filter.keyframeCount('0') > 0
        blockUpdate = false
        enableControls(isSimpleKeyframesActive())
    }

    function enableControls(enabled) {
        slider0.enabled = slider1.enabled = slider2.enabled = slider3.enabled =
            slider4.enabled = slider5.enabled = slider6.enabled = slider7.enabled =
            slider8.enabled = slider9.enabled = slider10.enabled = slider11.enabled =
            slider12.enabled = slider13.enabled = slider14.enabled = enabled
    }

    function updateSimpleKeyframes(position) {
        if (blockUpdate) return
        updateFilter('0', slider0.value, keyframesButton, position)
        updateFilter('1', slider1.value, keyframesButton, position)
        updateFilter('2', slider2.value, keyframesButton, position)
        updateFilter('3', slider3.value, keyframesButton, position)
        updateFilter('4', slider4.value, keyframesButton, position)
        updateFilter('5', slider5.value, keyframesButton, position)
        updateFilter('6', slider6.value, keyframesButton, position)
        updateFilter('7', slider7.value, keyframesButton, position)
        updateFilter('8', slider8.value, keyframesButton, position)
        updateFilter('9', slider9.value, keyframesButton, position)
        updateFilter('10', slider10.value, keyframesButton, position)
        updateFilter('11', slider11.value, keyframesButton, position)
        updateFilter('12', slider12.value, keyframesButton, position)
        updateFilter('13', slider13.value, keyframesButton, position)
        updateFilter('14', slider14.value, keyframesButton, position)
    }

    GridLayout {
        anchors.fill: parent
        anchors.margins: 8
        columns: 4

        Label {
            text: qsTr('Preset')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.Preset {
            id: preset
            parameters: keyframableParameters
            Layout.columnSpan: 3
            onBeforePresetLoaded: {
                resetSimpleKeyframes()
            }
            onPresetSelected: {
                setControls()
                initializeSimpleKeyframes()
            }
        }

        Label {
            text: qsTr('<b>Low Shelf</b>')
            Layout.columnSpan: 3
            Layout.alignment: Qt.AlignVCenter
        }

        ColumnLayout {
            Layout.rowSpan: 20
            height: (keyframesButton.height + 5) * Layout.rowSpan
            SystemPalette { id: activePalette }
            Rectangle {
                color: activePalette.text
                width: 1
                height: parent.height / 2
                Layout.alignment: Qt.AlignHCenter
            }
            Shotcut.KeyframesButton {
                id: keyframesButton
                onToggled: {
                    toggleKeyframes(checked, '0', slider0.value)
                    toggleKeyframes(checked, '1', slider1.value)
                    toggleKeyframes(checked, '2', slider2.value)
                    toggleKeyframes(checked, '3', slider3.value)
                    toggleKeyframes(checked, '4', slider4.value)
                    toggleKeyframes(checked, '5', slider5.value)
                    toggleKeyframes(checked, '6', slider6.value)
                    toggleKeyframes(checked, '7', slider7.value)
                    toggleKeyframes(checked, '8', slider8.value)
                    toggleKeyframes(checked, '9', slider9.value)
                    toggleKeyframes(checked, '10', slider10.value)
                    toggleKeyframes(checked, '11', slider11.value)
                    toggleKeyframes(checked, '12', slider12.value)
                    toggleKeyframes(checked, '13', slider13.value)
                    toggleKeyframes(checked, '14', slider14.value)
                    setControls()
                }
            }
            Rectangle {
                color: activePalette.text
                width: 1
                height: parent.height / 2
                Layout.alignment: Qt.AlignHCenter
            }
        }

        Label {
            text: qsTr('Frequency')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider1
            minimumValue: 20
            maximumValue: 20000
            stepSize: 0.1
            decimals: 1
            suffix: ' Hz'
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider1.value = defaultValues[1]
        }

        Label {
            text: qsTr('Gain')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider0
            minimumValue: -30
            maximumValue: 30
            stepSize: 0.1
            decimals: 1
            suffix: ' dB'
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider0.value = defaultValues[0]
        }

        Label {
            text: qsTr('Slope')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider2
            minimumValue: 0
            maximumValue: 1
            stepSize: 0.1
            decimals: 1
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider2.value = defaultValues[2]
        }

        Label {
            text: qsTr('<b>Band 1</b>')
            Layout.columnSpan: 3
            Layout.alignment: Qt.AlignVCenter
        }

        Label {
            text: qsTr('Frequency')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider4
            minimumValue: 20
            maximumValue: 20000
            stepSize: 0.1
            decimals: 1
            suffix: ' Hz'
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider4.value = defaultValues[4]
        }

        Label {
            text: qsTr('Gain')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider3
            minimumValue: -30
            maximumValue: 30
            stepSize: 0.1
            decimals: 1
            suffix: ' dB'
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider3.value = defaultValues[3]
        }

        Label {
            text: qsTr('Q', 'Parametric equalizer bandwidth')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider5
            minimumValue: 0
            maximumValue: 4
            stepSize: 0.1
            decimals: 1
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider5.value = defaultValues[5]
        }

        Label {
            text: qsTr('<b>Band 2</b>')
            Layout.columnSpan: 3
            Layout.alignment: Qt.AlignVCenter
        }

        Label {
            text: qsTr('Frequency')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider7
            minimumValue: 20
            maximumValue: 20000
            stepSize: 0.1
            decimals: 1
            suffix: ' Hz'
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider7.value = defaultValues[7]
        }

        Label {
            text: qsTr('Gain')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider6
            minimumValue: -30
            maximumValue: 30
            stepSize: 0.1
            decimals: 1
            suffix: ' dB'
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider6.value = defaultValues[6]
        }

        Label {
            text: qsTr('Q', 'Parametric equalizer bandwidth')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider8
            minimumValue: 0
            maximumValue: 4
            stepSize: 0.1
            decimals: 1
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider8.value = defaultValues[8]
        }
        
        Label {
            text: qsTr('<b>Band 3</b>')
            Layout.columnSpan: 3
            Layout.alignment: Qt.AlignVCenter
        }

        Label {
            text: qsTr('Frequency')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider10
            minimumValue: 20
            maximumValue: 20000
            stepSize: 0.1
            decimals: 1
            suffix: ' Hz'
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider10.value = defaultValues[10]
        }

        Label {
            text: qsTr('Gain')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider9
            minimumValue: -30
            maximumValue: 30
            stepSize: 0.1
            decimals: 1
            suffix: ' dB'
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider9.value = defaultValues[9]
        }

        Label {
            text: qsTr('Q', 'Parametric equalizer bandwidth')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider11
            minimumValue: 0
            maximumValue: 4
            stepSize: 0.1
            decimals: 1
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider11.value = defaultValues[11]
        }

        Label {
            text: qsTr('<b>High Shelf</b>')
            Layout.columnSpan: 3
            Layout.alignment: Qt.AlignVCenter
        }

        Label {
            text: qsTr('Frequency')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider13
            minimumValue: 20
            maximumValue: 20000
            stepSize: 0.1
            decimals: 1
            suffix: ' Hz'
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider13.value = defaultValues[13]
        }

        Label {
            text: qsTr('Gain')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider12
            minimumValue: -30
            maximumValue: 30
            stepSize: 0.1
            decimals: 1
            suffix: ' dB'
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider12.value = defaultValues[12]
        }

        Label {
            text: qsTr('Slope')
            Layout.alignment: Qt.AlignRight
        }
        Shotcut.SliderSpinner {
            id: slider14
            minimumValue: 0
            maximumValue: 1
            stepSize: 0.1
            decimals: 1
            onValueChanged: {
                blockControls = true
                updateSimpleKeyframes(getPosition())
                blockControls = false
            }
        }
        Shotcut.UndoButton {
            onClicked: slider14.value = defaultValues[14]
        }

        Item {
            Layout.fillHeight: true;
        }
    }

    Connections {
        target: filter
        onChanged: setControls()
        onInChanged: updateSimpleKeyframes(null)
        onOutChanged: updateSimpleKeyframes(null)
        onAnimateInChanged: updateSimpleKeyframes(null)
        onAnimateOutChanged: updateSimpleKeyframes(null)
        onPropertyChanged: setControls()
    }

    Connections {
        target: producer
        onPositionChanged: setControls()
    }
}
